1. Subtract \(3pq (p – q)\) from \(2pq (p + q)\)
 
2. Multiplying a binomial by a binomial \((3a + 4b) \times (2a + 3b)\)
Answer variants:
\(– p^2q + 5pq^2\)
\(6a^2+17ab+12b^2\)
\(p^2q + 5pq^2\)
\(6a^2-17ab+12b^2\)